Disk-harrow.



F. c. WARNE. DISK HARROW.

APPLICATION FILED JUNEZO, 19H. RENEWED MAY 11,1916.

Patented July 4, 1916.

4 SHEETS-$HEET 1.

3mm FEEDER/61f C. imp/vs.

Wi t/ems 5 F. c. WARNE.

DISK HA'RROW.

, APPLICATION FILED JUNE 20. 1914. RENEWED MAY 11,1916- 1,189,890.

. 8mm F/PEDE/P/Glf 6. n A/PNE.

Patented July 4, .1916.

F. C. WARNE.

DISK HARROW. V APPLICATION HLED IUNE ZO. 1914- R ENEWED MAY II. 1916.

' Patented July 4, 1916.

4 SHEETS-SHEET 3.

do fbsofiplbr C. MAP/Vb.

F. C. WARNE.

DISK HARROW. I APPLICATION FILED JUNE 20. I914- RENEV/ED MAY ll. I916.

1,189,890. Patented July 4, 1916,

4 SHEETS-SHEET 4.

' UNITED STATES PATENT OFFICE.

FREDERICK C. WARNE, 0F MANSFIELD, OHIO, ASSIGNOR TO RODERICK LEAN MFG.COMPANY, OF MANSFIELD, OHIO, A CORPORATION OF NEW JERSEY.

DISK HARROW.

Specification of Letters Patent.

Patented Jul 4, 1916.

Application filed June 20, 1914, Serial No. 846,225. Renewed May 11,1916. Serial No. 96,939.

T 0 all whom it may concern:

Be it known that I, FREDERICK C. VVARNE, a citizen of the United States,residing at Mansfield, in the county of Richland and State of Ohio, haveinvented certain new and useful Improvements in Disk Harrows, of whichthe following is a specification.

My invention relates to improvements in disk harrows, the presentembodiment rclating more particularly to that class or type known asdouble disk harrow in which two sets or gangs of rotary disks or cuttersare arranged one in front of the other and in which the disks of eachgang are usually angled and turned in opposite directions so that therear set will level off and thoroughly pulverize the ground thrown up bythe forward set and the ground be thus effectively treated in oneoperation.

While I have shown my improvement applied to or incorporated in a diskharrow of the double disk type, that is to say,- one in which front andrear units are employed, it is apparent that any of the improvements orattachments are equally applicable for use in connection with diskharrows of the single section type.

The primary object of my invention is to provide a generally improveddisk harrow of simple and efficient construction which' may be readilyadjusted to meet the varying demands of actual service, and with thisend in view, the improved harrow has its parts so constructed, arrangedand disposed relative to each other as to result in a constructionhaving the requisite strength, fleXi bility and general adjustabilitywhich experience has shown to be necessary or desirable.

Heretofore in disk harrows of the double disk or tandem type,the framescarrying the two gangs of disks have either been rigidly connectedtogether to form a single rigid frame or the frames for the two gangshave been separate and merely coupled together by a single centrallylocated coupling or reach-bar. In the former case the rigidity of thesingle frame presents difficulties in turning corners while in thelatter difficulty is experienced in keeping the two sets of gangs inline while traversing the field. It is to obviate these objections ordifficulties that my improvements in their relation to harrows of thisclass or type are directed,

and with this end in view, I provide a strong rigid rear harrow frameand to the opposite or outer-ends of said rear frame I pivotally connecttwo draft or reach bars the latter extending forwardly and in convergingrelation to each other and being pivotally con nected to a transversebar or member of the front frame at two points equally distanteliminates to some extent the swaying back and forth or lateralvibrations of the rear harrow which is possible and often occurs indouble disk harrows employing a single reach bar. In turning, thisconstruction also greatly assists and facilitates in throwing the rearsection or trailer ofi in thevgeneral direction in which'the frontharrow is being turned, and at the same time substantially follows theradius of the front harroW thereby greatly lightening the draft inturning corners and reventing the ridging up of the ground as requentlyoccurs with other disk harrows of the general construction hereinbeforereferred to. v

The improved scraper blade supporting actuating and adjusting mechanismshown and described but not claimed herein is made the subject of anapplication filed March 3, 1915, Serial No. 11,661."

A still further object is the provision of an improved foot controlleddisk gang regulating and leveling device for use inconnection with thefront harrow or section.

The front or draft frame, and the imincidence and when so adjusted maybe properly maintained in such position.

With the above mentioned and other ends in view, the invention consistsin the novel construction, arrangement, and combination of the diskgangs of. the front and rear I units or sections to their angularposition or relation to each other for active or operative use incultlvatingthe soil. Fig. 2, an

isometric view of a portion of the rear har-' row frame and one of theadjustably mounted disk frames carried thereby looking downwardly fromat the rear thereof and illustrating more particularly the bearings andadjustable connections between said frames. Fig. 3, a similar view ofsaid parts looking downwardly from in front of and at one side thereof.Fig. 4, a fragmentary side elevation of the draft and brace barconnections of the front frame or unit. Fig. 5, a fragmentary rear viewof the same. Fig. 6, a fragmentary top plan view of the same, Fig. 7, anisometric view of the front frame or unit looking downwardly from infront of and at one side thereof and illustrating more particularly thefront disk gang leveling and adjusting device. Fig. 8, a detached view,partly in side elevation and partly in central longitudinal sectionthrough the front frame, and illustrating more particularly the frontdisk gang leveling device and the connections between the latter and thestub-pole and adjustable draft bars leading to the front disk gangs.Fig. 9, a cross sectional view of one of the front disk frames andillustrating more particularly the scraper blade actuating and adjustingmechanism carried thereby.

Similar numerals of reference designate like parts throughout all thefigures of the drawings.

The improved disk barrow comprises a draft frame consisting, in thepresent instance, of a transverse bar 1, and a curved draft frame member2., the latter having its forward middle portion secured to a stub-pole3, which latter is made up of spaced angle bars secured at their rear tothe transverse bar or member 1, said stubpole being adapted to receive afore truck 1, as shown, or other draft appliance.

The stub-pole 3, is provided with a set of pivotally mounted levers 5,and sector racks 6, said levers being provided with suitable detents 7,adapted to cooperate with the racks 6, the lower ends of said leversbeing connected to draft bars 8, the latter having their rear endsflexibly attached to bearing or axle boxes 9, at the inner ends of thefront disk gangs whereby the latter may be given the desired angle withrespect to each other and the line of draft.

As a means of connecting the draft frame or front harrow frame to thedisk gangs, draft bars 10, are pivotally connected to the under outerportions of the curved frame member 2, and in front of the transversebar 1, said draft bars extending rearwardly beneath the latter and beingflexibly con nected to axle boxes 9, at or near the centers of the diskgangs, and as a means of limiting the lateral movements of the draftbars 8, the under side portions of the transverse bar 1, are providedwith cut away portions 1 providing stop shoulders 1, as shown mostclearly in Figs. 4: and 5 of the drawings. As a means of supporting andmaintaining the draft bar 10, in proper horizontal relation to thetransverse bar 1, the latter is provided with supporting clips 11, adapted to be moved horizontally and laterally as indicated by dotted linesin Fig. 6, said clips being pivotally connected to the top portions ofthe draft bars 10, and at the rear of the transverse bar 1, and as ameans of flexibly connecting the draft. frame to the upper ortransversebars 12 of the disk gang frames, brace members 13 are providedthe latterextending upwardly and rearwardlyfrom the top of thetransverse bar 1, of the draft frame and being likewise pivotallyconnected 4 to the bar 1, with the supporting clips or braces 11, bypivot securing bolts 11. Brace members 13, also extend from the innerends of the bars 12, of. the disk frames to the adjustable draft bars 8,connected to the lever members 5. The disk frame bars 12, are connectedto the axle boxes 9, by means of supporting bracket or brace members 15.

The improved scraper blade supporting actuating and adjusting mechanismfor the disks comprised in the disk gangs comprises longitudinally andcircumferentially movable scraper blade carrying bars 16, mounted uponand carried by the bars 12, of the 'disk frames through the medium ofbearing clips or bracket 17, the scraper blades 16, extending downwardlyand laterally from the carrying bars 16, and along the concaved ordished sides of the disks 18, (see Figs. 1 and 9), said carrying bars16, being provided with bearing bolts 19, extending through the bearingclips or members 17, said bearing bolts being secured to the bars 16, bymeans of attaching clips or members 19, and being surrounded by coiledsprings 20, which latter are interposed between and secured to thebrackets 17, and 19, whereby these springs are adapted to resist thelongitudinal and circumferential movements of the scrapercarrying bars16, on the hinged or bearing members 19, when actuated by the mechanismhereinafter described, and will return these bars and scrapers to theiroriginal positions when pressure is released by the actuating mechanism.

- As a means for operating or moving the scraper carrying bars 16circumferentially whereby the scraper blades 1 6 may be moved toward andfrom the axial centers of the disks as indicated most clearly in Fig. 9of the drawings, foot levers 21 are attached to the bars 16, and extendforwardly and upwardly therefrom, and as a means for securing the levers21 in any desired adjusted or depressed position said levers areprovided with pivotally mounted upwardly extending notched blades 21,

adapted to be brought into engagement with brackets 22, projecting fromthe bars 12, of the disk frames. As a means of limiting the downwardmovements of the levers 21,. and consequently the outward movements ofthe blades 16, toward the periphery of the disks 18, eye bolt members23, are pivotally mounted at the sides of the levers 21, and areprovided with upwardly extending threaded portions extending throughopenings in the brackets 22, said upwardly extending threaded portionsof the bolts being provided with adjustably mounted stop nuts 23*,whereby the circumferential movements of the bars 16, and the tiltingmovements of the blades 16, may be regulated and stopped at any desiredpoint toward the outer periphery of the disks 18, as illustrated mostclearly in Fig. 9 of the drawings.

As a means of moving the scraper blade carrying bars 16, laterally orlongitudinally and against the resistance of the coiled springs 20,surrounding the bearing .bolts 19, hand levers 24, are pivotallyconnected to the disk frame bars 12, said levers being connected to linkmembers 25, extending outwardly and connected to the scraper carryingbars 16, so that by moving the hand levers 24 outwardly, the bars 16will be moved longitudinally 'or laterally against the resistance of thesprings 20, carrying the blades 16*, away from the disks 18, the.

connection between the link members 25, and hand levers 24, being suchthat when the latter are thrown to their extreme outer position asillustrated at the right hand side of Fig. 1 said bars and blades willbe held in such positionin an obvious manner thus I keeping the scrapersentirel away from the disks to prevent their ru bin the latter when thescrapers are not nee ed.

As a means of providing an improved foot controlled disk gang levelingor regu the longitudinally movable or adjustable draft bars 8, leadingto the inner ends of the disk gangs and the draft frame, said levelingblock 26, in the present instance,

being disposed immediately beneath the the present instance, beingprovided with depending lugs 26, adapted to frictionally receive andretain the longitudinally movable draft bars 8, as well as form afriction bearing surface for the latter in any of their various adjustedpositions in angling the disk gangs to the line of draft.

As a means of depressing the forward end of the leveling block 26, andconsequently depressing the draft bars 8, and the inner ends of the diskgangs, the forward or free end of the pivotally mounted block 26, isprovided with an upwardly extending foot lever or rack arm 28, wherebythe operator or attendant from the seat of the harrow may by the footreadily depress the foot lever and consequently depress the draft barsthrough the medium of the lever movement imparted to the pivoted block26, and as a means for readily locking the foot lever in any desireddepressed position a rack engaging lever or dog 29, is pivotally mountedbeneath one of themembers of the stub-pole 3, and extends outwardly andrearwardly at one side of the latter termiportion 29, for the convenientoperation of the lever or dog in releasing by the foot the nating in anupwardly extending bracket.

sired, and as a means for holding or dravw ing the free portion of thelever or dog 29,

toward the rack arm or' lever 28, a spring 30, may be mounted beneaththe stub-pole 3, and secured to the latter by means of a bolt 30*, asshown most clearly in Fig. 8 of the drawings.

Referring now to the rear harrow or trailer and the means for attachingthe latter to the front harrow or draft frame whereby a generallyimproved double disk harrow is provided, it will be seen that I providea strong rigid rear harrow frame made up, in the present instance, of atransverse bar 31,- and a forwardly extending .curved bar 31, suitablybraced or connected to the transverse bar 31, as for example, by meansof brace members 31 said rear harrow frame being provided at its outerends with bear- "ing blocks or members 32, the latter being adapted toreceive the pivoted or swiveled hearing members 33, of the rear diskharrow frame members 34'. j v

As a means of properly connecting the rear harrowor trailer'to the frontharrow or draft frame whereby the rear harrow is adapted to follow thefront harrow in a true centralized position when the front harrow isbeing moved forwardly in a direct line as well as providing aconstruction adapted to eliminate to a great extent the lateral swayingmotions or vibrations of the rear barrow frame now so manifest in doubledisk harrows in which the rear harrow or trailer is connected to thefront draft frame through the medium of a single centrally located reachbarpand furthermore as a means of causing the rear section or trailer tobe thrown off and to follow the general direction in which the draftframe or front barrow is being turned, 1 pivotally connect two draft orreach bars to the opposite or outer ends of the rear harrow frame, inthe present instance, to the bearing members 33, of the rear disk gangs.said draft bars extending forwardly in converging relation to each otherand being normally disposed at an angle equally distant from thelongitudinal center or line of draft when the harrow as a whole istraveling in a true forward position. The front or converging ends ofthe draft bars are flexibly connec ed to the draft frame or front barrowframe at two points equally distant from the longitudinal center of theharrow or the true line of draft thereof, in the present instance, beingpivotally connected to the transverse bar through the medium of pivotbolts 35, said bolts or pivot members 35 being mounted in suitablyspaced openings 35*, in the bar 1, so that the reach bars 35, may behorizontally and latorally adjusted in proper relation to each other asdesired.

As a means of properly supporting and holding the rear disk gangs intheir various adjusted positions to each other and particularly whenshifted to their forwardly converging angle to the line of draft whenthe harrov: is in operation, as well as assisting in holding the partsof the rear unit or trailer in a true trailing position and preventinglateral swaying movements or vibrations. the front members 34, of therear disk frames are provided with forwardly extending brackets 36,including curved guide supporting members 36, which latter extend overand are adapted to travel upon supporting rollers 37, mounted in andcarried by hearing brackets 38, which latter are mounted upon andcarried by the draft or reach bars As a means of properly supporting theinner ends of the rear disk gangs in their respective adjusted positionsand also as a means of eliminating friction from said supporting meanswhen the inner ends of the rear disk gangs are shifted or adjusted toassume their forwardly converging angular relation to each other by theshifting mechanism hereinafter described, vertically swinging linkmembers 39, are provided said link members being connected to anddepending from the intermediate portions of the rear harrow frame, theupper ends of said links 39, in the present instance, extending throughopenings in supporting brackets 40, which latter are provided withpivoted movable bearing members 41, for supporting and giving a limitedmovement to the angular bearing portions 35). of the links 39, so thatwhen the latter are moved or shifted through the movements of the reardisk gangs the upper bearing portions 39 will be given the requisitemovements. as the inner ends of the rear disk gangs are shifted. theangular bearing portions 23%), being adapted to normally rest in and besupported by the notched. bearing portions 40, of the supportingbrackets as shown most clearly in Figs. 2 and I of the d ra w i 11 As aconvenient means of adjusting the rear disk gangs upon their pivots andparticularly as a means of moving the inner ends thereof forwardly toassume a forwardly converging angle with respect to each other. a pairof levers l) are. piviaially mounted upon the rear frame ha rrow. in thepresent instance. on the forwari'lly curved member 31.. said leversbeing provided with suitable-detents 42. adapted tocooperate withsuitable racks 43. in a well known and understood manner, the lower endsof said levers being provided with links t ing outwardly and connect dto the ends of the forwardly e; ending brackets :20, of the rear diskframes, this connection. in the present instance being made through themedium of separate bearing arms l7. to which the outer or looped ends ofthe links are secured by means of cotter pins 45.

T he rear disk frame members 34, in the present instance, are connectedto the axle portions of the rear disk gangs through the medium ofdepemling bearing brackets in, extending over and connected at theirlower ends to axle boxes ii. the rear member 34'. of the rear diskframes being also provided with depemllng bars lb, terminating in loopedportions l8, extending about the axle portions of the rear disk gangs.said bars l8, being adapted to prevent the accumulation of mud and dirtbetween the cutout disks if in a well known and understood manner.

From the foregoing description. taken in connection with theaccompanying drawings, the operation and advantages of my invention willbe readily understood.

Having thus described one of the embodiments of my invention. what llclaim and desire to secure by Letters Patents. i.

1. In a double disk harrow, front and rear harrow frames. gang framescarried thereby and reach bars flexibly connected to said rear harrowfranius and extending in a forwardly converging aagl/ and flexiblyconnected at their front ends to said front harrow frame at pointsequally distant from the line of draft.

2. In a double disk harrow, the'combinatlon with front and rear harrowframes provided with adjustably mounted disk gangs; of forwardlyconverging draft bars flexibly connected at their opposite ends to saidfront and rear harrow frames at points equally distant from'the commonlongitudinal centers of said frames.

3. In a double disk harrow, the combination with a front harrow frameand adjustable disk gangs carried thereby; of a rear harrow frameprovided with separate disk frames verticall pivotally connectedtherewith, separate fbrwardly converging reach bars horizontally pivotedat their ends to said front and rear harrow frames, and horizontallymovable engaging and supporting members between said rear disk framesand said reach bars.

4. In a double disk harrow, the combination with a front harrow frameand adjustable disk gangs carried thereby; of a rear harrow frameprovided with forwardly converging reach bars flexibly connected to saidfront frame at points equally distant from the longitudinal centerthereof, adjustable disk gangs carried by 'said rear harrow frame, andanti-friction supporting devices connected to said reach bars and reardisk gangs for vertically supporting the latter in their adjustedpositions.

5. In a double disk harrow, the combina tion of front and rear harrowframes provided with adjustable disk gangs, and independently mountedforwardly converging reach bars flexibly connected to said front andrear frames and normally extending at equal angles to the longitudinalcenter of said harrow, and means for vertically supporting said reardisk gangs in their various adjusted positions relative to said rearharrow frame and said reach bars.

6. In a double disk harrow, the combination with a draft frame includinga trans verse bar and adjustable disk gangs connected to said frame; ofa rear harrow frame provided with separate disk frames verticallypivotally connected therewith, separate forwardly converging reach barspivotally connected to said rear harrow frame and said transverse bar ofsaid draft frame at points equally distant fromthe centers of saidtransverse bar and said rear harrow frame and horizontally movableconnections between said reach bars and said gang frames for verticallysupporting the latter in their adjusted positions.

7. A trailing disk harrow, comprising a rigid horizontally trussedharrow frame, separate disk gangs and frames adjustably and pivotallyconnected therewith, separate forwardly converging horizontallyadjustable reaclrbars pivotally connected to the outer portions of saidharrow frame, and horizontally movable supporting connections betweensaid disk gangs and frames and said reach bars.

8. In a trailmg or rear harrow section, a trussed transversely extendingharrow frame, disk frames vertically pivotally con-.

arate disk frames vertically pivotally connected therewith and providedwith forwardly extending curved guide supporting members, reach barsflexibly connected to said rear harrow frame, and guide supportingmembers carried by said reach bars and.

connected with and supporting said curved guide supporting members ofsaid disk frames.

10. In a trailer or rear harrow section, a trussed transverselyextending rear harrow frame, vertically pivotally connected disk framesprovided with forwardly extending brackets including curved segmentalguide members, lever members mounted on said harrow frame and providedwith links connected to said forwardly extending brackets, reach barsflexibly connected to the outer portions of said rear harrow frame, and.guide supporting members carried by said reach bars and connected to andsupporting said segmental guide members.

11. I11 a double disk harrow. the combination with a draft frameincluding a transverse bar. a rear harrow frame. anddisk gangsadjustably mounted on said draft and harrow frames; of forwardlyconverging draft bars flexibly connected at their opposite ends to saidtransverse bar of said draft frame and said rear harrow frame at pointsequally distant from the common longitudinal centers of said frames.

12. A tandem harrow, comprising a front section and a rear section,reach bars connected to said sections at points equally distant on eachside of the line of draft. respectively, said reach bars being piyotallyconnected at their ends to one of sald sections at less distance fromeach other than the opposite ends on the other section to permit saidreach bars and said sections to nation of a front frame and a rear frameeach carrying earth working devices, arms connectedto one of said framesat opposite sides of the line of draft andeqnally'spaced therefrom, saidarms being pivotally connected to the other of said frames at a lessdistance from said line of draft than at the opposite ends to permitsaid frames to swing toward each other in varying relative angularrelation on said arms.

14. A tandem harrow, comprising a front section and a rear section, andreach bars connected at their opposite ends to said front and rearsections at points equally distant from the line of draft of saidsections, respectively, said reach bars each having a horizontallyswinging pivotal connection with the front section to permit saidsection and-reach bars to swing laterally in a substantially horizontalplane in varying relative angular relation to each other and to saidfront section. j

15. In a double disk harrow, the combination of a front section and arear section each including longitudinally adjustable disk gangs,reach-bars connecting said sections at each side of the line of draft,said reach-bars each havinga horizontal pivotal connection with one, ofsaid sections to permit said last mentioned section to swing toward theother section on said connections, said pivotal connections being spacedapart a less distance from each other and from said line of draft thanthe connections at the opposite ends of said reach bars, and

16. In a double disk harrow. the combination with a front section and arear section; of reach-bars connected to said rear section and flexiblyconnected horizontally to said front section to swing in a horizontalplane relative to said front section and at varying anglesthereto, saidpoints of connection between the ends of said reach-bars and the frontand rear sections, respectively. being equally distant on opposite sidesof the line of draft and said flexible (30111180- tions' on said frontsection being spaced from each other a less distance than theconnections of said reach-bars of said rear section.

17. A double disk harrow, comprising front and rear harrow sections,said draft bars connected at their opposite ends to said front and rearharrow sections at points equally distant from the common longitudinalcenters thereof, respectively, the connections between the front ends ofsaid draft meaeec bars and said front harrow section being horizontallyflexible and spaced from each other a lessdistance than on the rearharrow section to permit said draft bars and rear harrow section to movelaterallyfto one side or the other in a common horizontal plane andinvarying angles relative to each other and to said front harrow section.

18. In a double disk harrow, the combination of a front harrow section,a rear harrow section provided with reach-bars connected to said frontharrow section at points equally distant from the line of draft, saidconnections on said front harrow section being spaced from each other ata less distance than the connections of said reach-bars on saidrearsection, and linkmembers between N said rear harrow section and theinner ends of the disk-gangs carried thereby for vertically supportingthe latter in a common horizontal plane in their various adjustedpositions.

19. In a double disk'harrow, the combi- 1 connected to said front andrear harrow sections at points equally distant from the line of draft,respectively, the connections between the frontends of said reach-barsand said front harrow section being horizontally flexible and spacedfrom each other at a less distance than on the rear harrow section, andmeans on said rear harrow section for vertically supporting and carryingthe in nor ends of said disk gangs in a common horizontal plane in theirvarious adjusted positions thereon.

20. In a double disk harrow, the combination of front and rear harrowsections, each including horizontally adjustable vertically pivoted diskgangs, reach-bars connected to said rear section and flexibly connectedhorizontally to said front section to swing in a horizontal plane atvarying relative angles thereto and to each other.. said connections onsaid front section being spaced from each other a less distance thantheir connections to said rear section, and the points of connection oneach section being equally distant on each side of the line of'draft.respectively, and means on said rear section for vertically supportingsaid rear disk gangs in a common horizontal plane in their variousadjusted positions.

in testimony whereof I have affixed my signature in presence of twowitnesses.v

FREDERICK C. WARNE. Witnesses j Y H. E. Fox, M. HENRY, Jr.

